IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, VOL. 53, NO. 1 ... A. Antenna Design A resonant narrow slot antenna is equivalent to a magnetic dipole, and at its first resonant frequency it has an equivalent length of ( is the guided wavelength in the slot). If the slot antenna is fed near an edge by a microstrip line and the slot width is properly chosen, at a frequency above the first slot res- Design of a Microstrip-Line-Fed Inset Patch Antenna for RFID ... antennas. Microstrip patch antenna offers a potential solution and therefore is a popular printed resonant antenna for narrow-band applications. In this paper, a 2.42 GHz inset fed patch antenna has been designed for RFID applications with a gain of 4.6772dB and a return loss of -21.0579 dB. Index Terms—RFID, antenna, reader, inset fed, gain. I. Cavity Backed Spiral AntennaSpiral Antenna Our LX series cavity backed spirals are broadband antennas designed for EMC, surveillance, direction finding, telemetry, and flush mounted airborne applications. These spirals can be used as a separate component antenna or as broadband feeds for reflector type dish antennas. Design and Analysis of Cavity Backed Annular Ring Microstrip ...
DESIGN OF A HIGH-GAIN CAVITY-BACKED SLOT ANTENNA WITH ...
US4684952A - Microstrip reflectarray for satellite… A passive array of resonantly-dimensioned microstrip antenna radiator patches are closely spaced (i.e., less than one-tenth wavelength) above a ground plane and individually associated with transmission line segments terminated so as to … US8451189B1 - Ultra-wide band (UWB) artificial magnetic… This disclosure demonstrates a new class of Ultra-Wide Band (UWB) AMC with very large fractional bandwidth (>100%) even at lower frequencies (<1 GHz). This new UWB AMC is enabled by recognizing that any AMC must be an antenna in order to … US6954177B2 - Microstrip antenna array with periodic filters… An antenna unit formed in the shape of a hollow box comprising (a) a substrate forming the front side of the antenna unit, (b) a first microstrip antenna array formed on the substrate, (c) a second microstrip antenna array formed on the … US4843403A - Broadband notch antenna - Google Patents
Series-Fed Aperture-Coupled Microstrip Antennas and Arrays
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, VOL. 54, NO. 5, MAY 2006 1461 Size Reduction of Cavity-Backed Slot Antennas Wonbin Hong, Student Member, IEEE, Nader Behdad, Student Member, IEEE, and Kamal Sarabandi, Fellow, IEEE Abstract—A technique for reducing the dimensions of the cavity of a cavity-backed slot antenna (CBSA) is presented, which facil- A CSRR-Fed SIW Cavity-Backed Fractal Patch Antenna for ... In this paper, a novel compact dual-band and dual-polarized CSRR-fed SIW cavity-backed fractal patch antenna, which aims to work simultaneously for wireless energy harvesting and communication, is proposed and analyzed. It is shown that the combination of fractal geometries and the CSRR feed is effective in the design of compact SIW antennas. Cavity Backed Patch Antenna - weSRCH Description: Cavity backing of the conventional rectangular microstrip antenna is being proposed. The proposed antennas have been simulated. Improved values of Gain has been obtained from the proposed antenna. Results obtained for the cavity backed and without cavity-backed antenna has been compared. Cavity Backed T-bar-Fed Slot Antenna | Antenna Magus
Microstrip-fed cavity-backed slot antennas | Request PDF
A microstrip slot antenna is very small and lightweight still it has the problem of back radiation due to which power loss occurs and the SAR increases. To reduce the back lobe a technique introduces i.e. aperture coupled microstrip slot antenna which reduces the back lobe as well as increases the bandwidth of the antenna. Aperture coupled microstrip slot antenna couples the patch antenna with ... Cavity-Backed Slot/Strip Loop Antenna — Remcom ... In this example a cavity-backed slot/strip antenna is simulated in XFdtd using the XACT meshing feature. The simulated results for return loss, axial ratio, and gain are compared to measured results. The antenna design and measured results are taken from [1].
Microstrip patch antennas can be fed by a variety of methods. These methods can be classified into two These methods can be classified into two categories-contacting and non-contacting methods.
A microstrip slot antenna is very small and lightweight still it has the problem of back radiation due to which power loss occurs and the SAR increases. To reduce the back lobe a technique introduces i.e. aperture coupled microstrip slot antenna which reduces the back lobe as well as increases the bandwidth of the antenna.
Microstrip antenna having one or more arrays of resonant dipole radiator elements. The radiator elements have an E coordinate dimension of approximately ##EQU1## A feed line made up of similar, series-connected, semiresonant, approximately … US4042935A - Wideband multiplexing antenna feed employing… An antenna feed system having a very wide (multi-octave) bandwidth. The antenna feed comprises a plurality of nested annular cavities each parasitically excited by a pair of orthogonal two-point fed dipoles. US4477813A - Microstrip antenna system having nonconductively…